package com.example.booksales.mapper;

import com.example.booksales.domain.User;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
@Mapper
public interface UserMapper {
    List<User> selectAll();
    User selectById(int id);
    int SaveUser(User user);
    int UpdateUser(User user);
    int DeleteUser(int id);
    int checkUser(User user );
}
